Serum Electrolytes
Sodium, potassium and chloride, checked in dehydration and on diuretics.
Also known as: electrolytes, sodium potassium chloride, Na K Cl
Full patient price. No booking fee.
- Turnaround
- Same day
- Preparation
- No fasting needed. Eat and drink normally.
- Sample
- Blood sample
- Home collection
- Available free in our service areas
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About this test
Electrolytes control fluid balance, nerve signalling and heart rhythm. They are checked after vomiting or diarrhoea, in anyone on diuretics or blood pressure medication, and in kidney disease. Potassium in particular needs to stay within a narrow range because both high and low levels affect the heart.
What it measures
- Sodium
- Potassium
- Chloride
- Bicarbonate
A note on results. A single test is one part of a clinical picture, not a diagnosis. Discuss your report with a qualified doctor, who will read it alongside your history and examination.
Related to
- Kidney
- General health
Often booked with this
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- Same day
- No fasting
- Home collection
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- Home collection
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